/* ============================================================
   iPostExpress — Sistema de diseño V3 (base / tokens)
   Compartido entre todas las áreas (público, cliente, analista, admin).
   Fuente de referencia: ACTUAL.html (mockup v3)
   ============================================================ */
:root{
  --vino:#901A3D;
  --vino-oscuro:#6B122C;
  --petroleo:#0E4A52;
  --petroleo-tinta:#082E33;
  --papel:#FAFBFB;
  --niebla:#EFF3F2;
  --linea:#DCE4E2;
  --tinta:#16211F;
  --gris:#5C6866;
  --amarillo:#F5C842;
  --radius:14px;
  --sombra:0 10px 30px rgba(14,74,82,.10);
  --sombra-soft:0 2px 8px rgba(14,74,82,.05);
  --font-display:"Archivo",system-ui,-apple-system,sans-serif;
  --font-body:"Instrument Sans",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,Consolas,monospace;
  --ok:#25D366;
  --rojo:#C0392B;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);color:var(--tinta);background:var(--papel);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,select,textarea{font-family:var(--font-body)}
:focus-visible{outline:3px solid var(--vino);outline-offset:2px;border-radius:4px}
.contenedor{max-width:1180px;margin:0 auto;padding:0 24px}

/* ─── Tipografía de display ─── */
h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;letter-spacing:-.02em;line-height:1.12;color:var(--petroleo-tinta)}
h1 em,h2 em,h3 em{font-style:italic;color:var(--vino)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--petroleo);background:var(--niebla);border:1px solid var(--linea);padding:6px 12px;border-radius:99px;margin-bottom:18px}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--vino);flex-shrink:0}
h1{font-size:clamp(2.2rem,4.6vw,3.5rem)}
h2{font-size:clamp(1.7rem,3.2vw,2.4rem)}
h3{font-size:1.1rem}
.sec-cabeza{max-width:640px;margin-bottom:44px}
.sec-cabeza .eyebrow{margin-bottom:14px}
.sec-cabeza p{margin-top:14px;color:var(--gris)}

/* ─── Botones ─── */
.btn{display:inline-flex;align-items:center;gap:8px;justify-content:center;padding:10px 18px;border-radius:9px;font-weight:600;font-size:.9rem;border:1px solid transparent;transition:transform .15s,box-shadow .15s,background .15s,color .15s,border-color .15s;cursor:pointer}
.btn:hover{transform:translateY(-1px)}
.btn-vino{background:var(--vino);color:#fff;box-shadow:0 4px 14px rgba(144,26,61,.28)}
.btn-vino:hover{background:var(--vino-oscuro)}
.btn-borde{border-color:var(--linea);color:var(--petroleo);background:#fff}
.btn-borde:hover{border-color:var(--petroleo)}
.btn-petroleo{background:var(--petroleo);color:#fff}
.btn-petroleo:hover{background:var(--petroleo-tinta)}

/* ─── Animaciones de aparición (scroll reveal) ─── */
.rv{opacity:0;transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1);will-change:opacity,transform}
.rv.visible{opacity:1;transform:none !important}
.rv-left{transform:translateX(-60px)}
.rv-right{transform:translateX(60px)}
.rv-up{transform:translateY(60px)}
.rv-down{transform:translateY(-60px)}
.rv-zoom{transform:scale(.82)}
.rv-fade{transform:none}
@media(prefers-reduced-motion:reduce){
  .rv{opacity:1 !important;transform:none !important;transition:none}
}

/* ─── Botón volver arriba ─── */
.volver-arriba{position:fixed;left:22px;bottom:22px;z-index:70;width:48px;height:48px;border-radius:50px;background:var(--petroleo-tinta);color:#fff;display:grid;place-items:center;box-shadow:0 8px 24px rgba(0,0,0,.22);opacity:0;visibility:hidden;transform:translateY(16px) scale(.9);transition:all .3s ease;border:1px solid rgba(159,212,206,.35)}
.volver-arriba.visible{opacity:1;visibility:visible;transform:none}
.volver-arriba:hover{background:var(--petroleo);transform:translateY(-2px)}

/* ─── Despliegue progresivo "ver más" ─── */
.ver-mas{overflow:hidden;display:grid;grid-template-rows:0fr;transition:grid-template-rows .7s cubic-bezier(.16,1,.3,1)}
.ver-mas>div{overflow:hidden;min-height:0}
.ver-mas.abierto{grid-template-rows:1fr}
.ver-mas-btn{display:inline-flex;align-items:center;gap:8px;margin-top:20px;padding:9px 16px;border-radius:99px;border:1px solid var(--linea);background:#fff;color:var(--petroleo);font-weight:600;font-size:.88rem;transition:all .15s;cursor:pointer}
.ver-mas-btn:hover{background:var(--petroleo);border-color:var(--petroleo);color:#fff}
.ver-mas-btn .ico{transition:transform .3s ease;font-size:.85rem}
.ver-mas-btn.abierto .ico{transform:rotate(180deg)}

/* ─── Utilidades de color de fondo ─── */
.f-petroleo{background:var(--petroleo-tinta)}
.f-niebla{background:var(--niebla)}
.f-vino{background:var(--vino)}
.f-blanco{background:#fff}

/* Scrollbar sutil */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--niebla)}
::-webkit-scrollbar-thumb{background:rgba(14,74,82,.35);border-radius:10px}
::-webkit-scrollbar-thumb:hover{background:var(--petroleo)}